Asterisk Routing and security

Asterisk Asterisk Support
1

Hi, here is my current setup…
2 SIP Phones at different locations, 1 Asterisk server at seperate location.
1 of the SIP phones is behind a NAT, also have 1 iax provider and 1 DID.
my question is when i make/recieve calls who has access to source & destination IP besides asterisk server of course.

In these 2 scenarios …which devices or people will know about sip_phone1 ip besides asterisk

SIP_phone1 —>asterisk–>IAX Provider–>PSTN

SIP_phone1 -->asterisk—>Sip_phone2

sip.conf

[sip_phone1]
type=friend
context=from-sip
secret=
host=dynamic
dtmfmode=rfc2833
disallow=all
allow=ulaw
all=alaw
username=sip_phone1
auth= sip_phone1
nat = yes
canreinvite=no

2

turn on sip debugging and you can see the traffic between your Asterisk server and the ITSP … then you can see for yourself what information is contained in the packets sent.

not sure why it needs to be a complete secret though.

3

thanks, looks like ip is only known to asterisk…the reason why i need to be secret is, i dont want my employees on the other extenstions to know if im using the phone at work or from home based on the ip. Am i right? the other sip phones wont know my ip if i call them since they dont have shell access to the asterisk server